Windows 10 IoT LTSC 2019 for an oilfield wellhead controller (INTER-E3845)

Swayline Engineering · 7 min read · Updated 2026

An oilfield wellhead controller running on an INTER-E3845 platform needed a Windows 10 IoT LTSC 2019 image designed for unattended cabinet operation in the field: no Windows branding at the screen, no Windows hotkeys in the field technician's hands, no forced updates, no sleep states. The unit sits in a metal cabinet outdoors and is operated by field staff who have no IT training.

What the customer required

• Windows 10 IoT LTSC 2019, 64-bit, on INTER-E3845 hardware.
• Auto-login to the default user with no login prompts of any kind.
• After abnormal shutdown (power cut, emergency stop), the system files stay intact - no recovery screen, no repair prompts, no crash.
• System volume has power-loss protection; write-protection is user-toggleable.
• Boot sequence and shutdown sequence must not display any Windows-related information. The screen is either fully black, or shows the mainboard vendor's custom LOGO.
• All Windows hotkeys and shortcuts are disabled - the customer's business program keeps its own hotkeys; Ctrl+Alt+Del is remapped to Ctrl+F1+Del, and a special hotkey opens Explorer / Task Manager.
• Input method switching is preserved.
• Self-install drivers, runtime and business applications. Insert a USB drive and the system auto-installs the driver.
• No sleep, no standby, no screen-off, no hard-drive spin-down, no USB selective suspend. Maximum performance, always on.
• UAC set to Never notify.
• Windows Update disabled. The image ships with no high or medium Nessus vulnerabilities.
• A vulnerability report accompanying the build.
• Image includes full .NET and Visual C++ runtime so the customer's later apps and drivers install without dependency errors.
• Self-install of new hardware drivers and applications later in the device's lifecycle.
• Controlled method to return to a normal Windows session.
• Shutdown screen must not show "Shutting down..." or any related Windows UI.
• Process monitoring: if the business program exits unexpectedly, the system performs a configured action (relaunch / restart / shutdown).
• System process count kept at roughly 60-70.
• Local one-key recovery with two operational modes:

1. Local one-key recovery (C: drive only): pressing the recovery hotkey at the boot menu authenticates and restores the system partition. Designed to avoid accidental triggering - the device auto-reboots after a successful run.
2. USB-triggered recovery: insert a prepared USB drive and the system fully auto-restores from it, then powers off. No UI interaction required.

What Swayline delivered

• Win10 IoT LTSC 2019 64-bit image, trimmed, on an INTER-E3845 mainboard. Validated in our integration lab before sign-off.
• Pure-software power-loss handling: the system reaches a normal Windows shell after any unclean shutdown, with no manual intervention.
• Toggle-controlled write protection on the system partition, kept across reboots.
• Brand-stripped boot: black screen at power-on, mainboard LOGO during early boot, no Windows messages anywhere on the boot or shutdown path.
• Hotkey suppression: Windows hotkeys blocked by policy, the customer's hotkeys fully functional, Ctrl+Alt+Del re-mapped to Ctrl+F1+Del, special keys expose Explorer / Task Manager / Device Manager for the field engineer.
• Permanent maximum-performance power profile, no standby and no selective suspend.
• UAC switched off and Windows Update component disabled.
• Nessus scan on the final image: 0 high, 0 medium, 0 low findings; a signed vulnerability report delivered alongside the image.
• .NET and VC++ runtime pre-installed at all supported versions.
• Process monitoring with three configurable responses (relaunch / restart / shutdown).
• Local one-key recovery (C: only) with confirmation step; plus USB-auto recovery for unattended service.

The result

The unit ships to the field as a self-contained appliance: it boots in seconds, runs the customer's program, and a field service engineer can recover it with a single key press - or by plugging in a USB drive. No IT visits, no forced updates, no Windows UI leakage into the field.